Autodidact
Intentionally Blank
one more warm up just for the fun of it
Fish that Ruined Evolutionists
Dreams:CoeoelecanthEvolutionists used to depict the Coelecanth, a fish
known only from fossils dating back 400 million years,
as very powerful evidence of a transitional form between
fish and amphibians. Since it was assumed that
this species had become extinct 70 million years ago,
evolutionists engaged in all kinds of speculation re-
garding the fossils. On 22 December 1938, however, aThis creature had never evolved at all.
living Coelecanth was caught in the deep waters of the
Indian Ocean. More than 200 other living specimens
have been caught in the years that followed.
All the speculation regarding these fish had been unfounded.
Contrary to what evolutionists claimed, the
Coelecanth was not a vertebrate with half-fish, half-amphibian
characteristics preparing to emerge onto dry
land. It was in fact a bottom-dwelling fish that almost never
rose above a depth of 180 meters (590 feet). Moreover,
there were no anatomical differences between the living
Coelecanth and the 400-million-year-old fossil specimens.
This is stupid. ToE does not predict there will be no Coelacanths. On the contrary, it predicts there will be families like this.
pz myers.Any time a creationist tries to tell you that living fossils disprove evolution, you know that he or she a) doesnt understand the theory of evolution at all, and b) hasnt honestly looked at the evidence they think they are presenting. They might as well get the word Idiot tattooed into their forehead; as a signifier of their intellectual prowess, it would be just as accurate. They all make several gross errors. "Unchanging forms refute evolution. Not quite true. A species that exhibited no variation at all, and that showed no change over time, not even neutral molecular differences, would be a major puzzler for biology. No such thing has ever been observed. On the other hand, gross structural stasis over a long period of time is no problem for evolution. One thing even many biology students have some difficulty grasping is that selection is a conservative force; it tends to limit variation to the narrower domain of the viable and the competitive.
Coelacanths are unchanging forms that show no evidence of evolution. Read the quotes above: the creationists cant even get their stories straight. They repeatedly claim that the coelacanth is stable and unchanging, but then they turn around and point out huge differences between what we know of coelacanths in the fossil record and modern forms: they live in different environments with remarkably different physiology. Which is it? Are they unchanging or are they radically changed?
The answer is that modern coelacanths are specialized remnants of a once diverse and widespread group. They have changed extensively over hundreds of millions of years, as would be expected, and this once widely successful and branched family has been pruned back to just a few twigs lurking in relatively inaccessible locations. Here, for instance, are a few fossil examples of ancient coelacanth diversity (Clack, 2002):
A. Macropomoides orientalis, from the late Cretaceous.
B. Rhabdoderma elegans, late Carboniferous.
C. Allenypterus montanus, early Carboniferous.
"Coelacanth" is a term that refers to an entire order of fish, the Coelacanthiformes. The modern coelacanths are of the genus Latimeria, and none of the ancient fish belong to that genusit ought to be fairly obvious that Latimeria is clearly distinct from any of the fossil forms if it was assigned to a unique genus. The brilliant creationists who point to Latimeria and claim that it is an example of an unchanging form might want to reconsider; would they also point to a random member of the primate order, say a howler monkey, and announce that it is obvious that all primates for all of their history have been identical?
Scientists havent been disappointed by the coelacanth at all. Its wonderful to have at least a few representatives of a family once thought to be extinct that are still around. Personally, one thing Id like to know more about is that fascinating limb duplication they exhibit. They have a second dorsal and anal fin that each have a partial girdle structuretheres an interesting story in molecular development in there, Im sure.
Until you find out what ToE says, you will be powerless to refute it.